# Algebra I Quick Reference vs Calculus Problem & Quiz Solver

The clearest difference is price: Calculus Problem & Quiz Solver at Free against Algebra I Quick Reference's $0.99. Calculus Problem & Quiz Solver also leads on update cadence (every 3 weeks vs every 36 months) and device support (3 vs 1). Algebra I Quick Reference's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.0). On ads there is nothing between them.

Calculus Problem & Quiz Solver is free to download; Algebra I Quick Reference costs $0.99 up front. Calculus Problem & Quiz Solver sells 2 in-app purchases, starting at $4.99 per 7 days. Algebra I Quick Reference asks for nothing beyond the download.

Algebra I Quick Reference ships an update every 36 months, Calculus Problem & Quiz Solver every 3 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Algebra I Quick Reference | Calculus Problem & Quiz Solver |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 3 weeks** |
| Size | 4 MB | 67 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Kukuh Nomikusain](https://appshunter.io/developer/1739975777) |

## What reviewers say

### Algebra I Quick Reference

[App page](https://appshunter.io/ios/app/algebra-i-quick-reference/id560359498)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculus Problem & Quiz Solver

[App page](https://appshunter.io/ios/app/calculus-problem-and-quiz-solver/id6757754410)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Weekly) | $4.99 | per 7 days |
| Pro (Yearly) | $29.99 | per year |


## Frequently asked questions

### Is Algebra I Quick Reference free?

Algebra I Quick Reference costs $0.99, with no in-app purchases.

### Is Calculus Problem & Quiz Solver free?

Calculus Problem & Quiz Solver is free to download, with in-app purchases available.

### Do Algebra I Quick Reference or Calculus Problem & Quiz Solver have ads?

Neither Algebra I Quick Reference nor Calculus Problem & Quiz Solver shows ads.

### Which is updated more often, Algebra I Quick Reference or Calculus Problem & Quiz Solver?

Algebra I Quick Reference ships an update every 36 months, and Calculus Problem & Quiz Solver every 3 weeks. Most recently, Algebra I Quick Reference was updated on October 26, 2026 and Calculus Problem & Quiz Solver on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*